Ultrasonic Homogenizer

Ultrasonic Homogenizer

  • Development of Ultrasonic Technology
  • Homogenization

    1. NanoScale Certification

    2. 2017/11/21
    3. 2020/11/21

    1. Certificate of Nanotechnology

    2. 2017/11/21
    3. 2020/11/21
Introduction Application Specification Advantage Of Using Nanotechnology Manual And Maintenance Safety And Package
Ultrasound waves are a type of mechanical waves having a frequency above the human hearing range (20Hz to 20 kHz). These waves because of their unique characteristics are used in different fields such as therapeutic, diagnostic, laboratory, food, security and industrial applications. Ultrasound waves are artificially generated by means of different methods. This type of waves is typically generated by use of piezoelectric effect. Piezoelectricity was discovered in 1880 by Jacques and Pierre Curie. Based on this discovery, when some crystals of materials such as quartz that have no center of symmetry are subjected to a mechanical stress, generate an electric charge. The reason for the generation of a potential difference is related to the existence of electric dipole moments in the microscopic structure. The opposite of the described effect can also occur in piezoelectric materials, in which applying an electric current can result in mechanical stress. Generally, the apparatus which generate ultrasonic waves are made up of three major parts, i.e. generator, transducer and booster. 
Sonochemistry, sonoelectrochemistry and sonomechanics are of the novel and newfound applications of ultrasonic machines that can be mentioned. Ultrasonic Homogenizer is one of the most widely used equipment of this field. This device has special contribution in synthesis and characterization of materials. In addition to the widespread application on laboratory, it is potential enough to be employed in pilot scale or even industrial scale. Some applications of ultrasonic homogenizer instrument including mixing of detergent, production of oils containing nanoparticles, preparation of stable slurries, desulphurization of gasoline, biodiesel production, synthesis of nanomaterials, accelerating and facilitating complex chemical reactions, fabrication of porous materials, production of stable emulsions, purification and refining of oil products and wastewater, production of composites, cleaning of oxidized surfaces, extraction of herb extracts, disrupting cell and many other cases can be mentioned. 
Some applications of this instrument are as follows:
  • Synthesis of nanopowders
  • Dispersion and distribution of nanoparticles 
  • Extraction of herb extracts 
  • Acceleration of chemical reactions
  • Cracking
  • Purification and refining of oil products (gasoline sulfur removal)
  • Production of nano-fluids 
The Ultrasonic Homogenizing systems provided by this company are designed and produced in six different models. Details of technical specifications are presented in the following Table.
 
 
 
Many of the synthesis processes of nanoparticle and nanostructured materials rely on homogenization and in some of the early stages of their processes need to be prepared as emulsions and suspensions. Thus, the application of ultrasonic homogenizer in production of nanoparticles, nanostructured materials and generally, in nanotechnology is very broad and fundamental.
  • Before starting, be sure the platform height adjustment screw is tight.
  • After each session, wash the probe in the following order:
    • Put a container with 500 ml distilled water under the probe.
    • Set the platform height in a way that the probe tip gets into liquid about 4 cm beneath the water surface.
    • Turn on the device for 2 minutes under 250 W of power, with active and passive intervals of 7 and 3 seconds, respectively, and the total time of 5 minutes.
    • Turn off the main switch of the power supply.
    • Remove the probe and transducer assembly from the container and wash the probe tip with ethanol.
    • Dry the probe tip by using a lint-free cloth.
    • Put the probe and transducer assembly into the container.
  • Only use glass container to perform the experiment because plastic containers absorb waves and reduce the device efficiency. 
  • For more details on how to use the device, refer to the device catalog and user guide.
  • Avoid turning on the device without putting a container containing a liquid like water under the probe. This causes serious damage to the device generator and transducer.
  • The probe tip should get into liquid at least 2 to 3 cm beneath the water surface.
  • Choose the volume of reaction vessel proportional to the volume of desired solution, in a way that solution fills the two third of the volume. Furthermore, be careful in selecting output power for small liquid volumes because use of high power not only accelerates the liquid heating but also evaporates it and thereby reduces the liquid height in the container. This could result in damage to the device probe. As mentioned earlier, the volume of liquid inside the container should be highly enough that the probe tip gets into the liquid at least 1.5 cm beneath the liquid surface, its distance from the container’s bottom is at least 1 cm and its lateral surface does not touch the container’s wall.
  • Close the door of sound abating chamber to avoid device noise during operation.
  • In experiments which need long time operation of device, always check the transducer body temperature and be sure it is cool. Excessive increase of the transducer temperature causes serious damage to it.
  • Do not touch the probe when it is in operation. This could cause severe burns.
  • Since the ultrasonic waves increase the solution temperature, so in experiments, which need long time operation of device, reaction chamber should be placed inside a cooling medium like ice cooling bath to keep the solution temperature stable and avoid its evaporation.
  • Avoid contacting the probe with corrosive solutions as much as it is possible. 
  • Avoid inserting sharp metal objects into the holes placed on the transducer body for air circulation. This may cause severe electric shock.
  • Avoid any contact of the probe with the vessel.
  • Do not remove the probe from vessel during the operation.
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